标题: 求助··！OG12 CR57 [打印本页] 作者: mia113 时间: 2011-8-19 11:55 标题: 求助··！OG12 CR57 57.Which of the following most logically completes the argument given below?
People in isolated rain-forest communities tend to liveon a largely vegetarian diet, and they eat little salt.Few of them suffer from high blood pressure, and theirblood pressure does not tend to increase with age, asis common in industrialized countries. Such peopleoften do develop high blood pressure when they moveto cities and adopt high-salt diets. Though suggestive,these facts do not establish salt as the culprit in highblood pressure, however, because
(A)genetic factors could account for the lack of increase of blood pressure with age among such people
(B)people eating high-salt diets and living from birth in cities in industrialized societies generally have a tendency to have high blood pressure
(C)it is possible to have a low-salt diet while living in a city in an industrialized country
(D)there are changes in other aspects of diet when such people move to the city
(E)salt is a necessity for human life, and death can occur when the body loses too much salt
答案是：D 想请问下：OG对C选项的解释：文章讨论的是那些 从雨林搬到城市来 并且 摄入了高盐分的食物的人， 所以与摄入低盐分食物的人 无关。 若C选项是：在这群搬到城市里的人中，仍然保持低盐分食物的人 也得了高血压 是否可为正确答案？还是仍然是无关选项 我的问题比较纠结··太麻烦大家了··作者: 超级无敌小鹤鹤 时间: 2011-8-19 23:57
C选项说得是 in a city in an industrialized country，请注意原文中的 as is common in industrialized countries. 所以，in a city in an industrialized country指的是热带雨林里的人，而不是搬到城市的人。如果C改成lz说的，搬到城市里的人 低盐分摄入还得高血压，理论上是可以的。。。不过这样的话，和原文的they move to cities and adopt high-salt diets不符吧作者: mia113 时间: 2011-8-20 00:35
谢谢ls的解答 ···我所谓的搬到城市的人 其实就是 本来住在热带雨林里 然后搬到城市里去的人 我当时想的是 D是找他因，使文章逻辑成立，我将C变成了 割断因果 有果没有因。 只是不知道这样会不会是反驳了题干··导致成为了无关选项·作者: jessicaxier 时间: 2011-8-20 06:10
我个人认为改了以后是可以的.因为其实题目问的就是为什么盐分涉入不是他们得高血压的原因.改了以后的答案相当于是给它提供了例子证明其正确性作者: hanshipeng 时间: 2011-8-20 09:10
如果这些人们仅仅移民城市，而且其他条件不变，那么食物含盐量的增加带来高血压可以看做一个原因，但是正因为移民城市后，这些人的其他条件或许也有变化，而且这些条件的变化或许是造成高血压的条件，而不一定是盐的问题，所以D对。作者: mia113 时间: 2011-8-21 15:09
谢谢大家的回答····